We are both well aware of Christ's promise and to that I only say amen. As to who is right and wrong, it is a lot more complex than Pope said this ergo, everyone else is wrong. Both sides in this debate can selectively quote from their own personal favorite dead Pope up to and including John Paul II. The idividuals mentioned in Ecclesia Dei are excommunicated. The Pope used his authority here because of the illicit ordination of bishops. As far as I know, no other reason pertaining to the beliefs and practices of the SSPX has been used to justify the excommunication. Indeed, I can think of no other. The SSPX ought to seek regularization of these bishops before it seeks anything else. I would love to see that. Until then, I tolerate the Novus Ordo which is easy enough as long as the parish folkies aren't doing the liturgical music which happens every other month or so.
By whose diocesan authority do SSPX purport to forgive sins in the Sacrament of Penance???? Who authorizes SSPX to grant annulments of marriages????